#!/usr/bin/node

const EventEmitter = require('events'),
      log          = console.log,
      e            = new EventEmitter();
setInterval(()=>{
  e.emit('hello');
},1000);

setTimeout(()=>{
  e.emit('bye');
},5000);

e.on('hello',()=>{
  log('hello world');
});
e.on('bye',()=>{
  log('Goodbye');
  process.exit();
});
